Abstract: Provided are a lithium nickel metal complex oxide powder having low alkalinity and excellent cycle characteristics, a lithium ion battery positive electrode active material containing the same, a lithium ion battery positive electrode using the active material, and a lithium ion battery having the positive electrode. A lithium nickel metal complex oxide exhibiting excellent cycle characteristics and low alkalinity is successfully produced by controlling the crystal grain size and composition ratio in a lithium nickel metal complex oxide powder.

Abstract: Provided are a lithium nickel metal complex oxide powder having low alkalinity and excellent cycle characteristics, a lithium ion battery positive electrode active material containing the same, a lithium ion battery positive electrode using the active material, and a lithium ion battery having the positive electrode. A lithium nickel metal complex oxide exhibiting excellent cycle characteristics and low alkalinity is successfully produced by controlling the crystal grain size and composition ratio in a lithium nickel metal complex oxide powder.

Abstract: Performance improvement and cost reduction in a positive electrode active material for a lithium ion battery. A method of manufacturing a lithium nickel composite oxide including the following Steps 1 to 7: (Step 1) a dissolving step; (Step 2) a precipitation step; (Step 3) a filtering step; (Step 4) a drying step; (Step 5) a mixing step of mixing aluminum hydroxide and lithium carbonate with the precursor powder, which is obtained in Step 4, to obtain a mixture; (Step 6) a high-temperature firing step of firing the mixture, which is obtained in Step 5, at a high temperature of higher than 790° C. to obtain a fired product; and (Step 7) a low-temperature firing step of firing the fired product, which has undergone Step 6, at a low temperature of lower than 790° C.

Abstract: A catalyst for ester production which comprises zirconium oxide, copper, and at least one oxide selected from the group consisting of zinc oxide, chromium oxide, aluminum oxide and silicon oxide, and is obtainable by reducing with hydrogen a catalyst precursor prepared by the reaction of a salt containing at least one of metals constituting the oxides, a zirconium salt and a copper salt with an alkali hydroxide; and a process for producing an ester which comprises bringing either an alcohol or an alcohol and an aldehyde into contact with this catalyst in a gas phase.

Abstract: A catalyst for ester production which comprises zirconium oxide, copper, and at least one oxide selected from the group consisting of zinc oxide, chromium oxide, aluminum oxide and silicon oxide, and is obtainable by reducing with hydrogen a catalyst precursor prepared by the reaction of a salt containing at least one of metals constituting the oxides, a zirconium salt and a copper salt with an alkali hydroxide; and a process for producing an ester which comprises bringing either an alcohol or an alcohol and an aldehyde into contact with this catalyst in a gas phase.

Abstract: A catalyst for ester production which comprises zirconium oxide, copper, and at least one oxide selected from the group consisting of zinc oxide, chromium oxide, aluminum oxide and silicon oxide, and is obtainable by reducing with hydrogen a catalyst precursor prepared by the reaction of a salt containing at least one of metals constituting the oxides, a zirconium salt and a copper salt with an alkali hydroxide; and a process for producing an ester which comprises bringing either an alcohol or an alcohol and an aldehyde into contact with this catalyst in a gas phase.

Abstract: A catalyst which causes no occurrence of waste water due to neutralization, water-washing, etc. and can yield the objective product with a high activity and a superior selectivity is provided, and when a specified barium-supporting calcium oxide or a composite oxide of barium oxide with calcium oxide is used as catalyst, such a catalyst is applicable, for example, to a production of a carbonyl compound derivative from a carbonyl compound.